Which of the following statements about RNAi is TRUE?

Question

Quizplus · Accepted Answer

RNAi is induced when double-stranded, foreign RNA is present in the cell. This phenomenon is found in almost all eukaryotic organisms, including plants and animals. The protein complex called RISC (RNA-induced silencing complex) uses the siRNA duplex (small interfering RNA) to locate complementary foreign RNA molecules and promotes their degradation. miRNAs (microRNAs) are also involved in RNAi, but they act on endogenous RNA molecules to regulate gene expression. siRNAs and miRNAs are both small RNA molecules that can induce RNAi but they function differently.

Which of the Following Statements About RNAi Is TRUE